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INVENTORIES (Details Narrative) - USD ($) | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021
Inventory Disclosure [Abstract] |  |
Recorded impairment charges for slow moving inventories | $ 24,745 | $ 0

X
- Definition The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value. + References No definition available. + Details
Name: | gure_RecordedImpairmentCharges
Namespace Prefix: | gure_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_InventoryDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration